The original 65w bad, sometimes with less than 65w, can 90w it?
To check the current and voltage size, and the opening in the forward or negative
Generally do not recommend a last resort is also possible but the damage to the machine, especially the power of a moment
As long as the voltage on the line, 90w is the power, you have to look at the voltage, power, of course, the bigger the better the voltage will be as big as the line
As long as the interface can, 90w can replace 65w.
--------------------------------------
Reference:
Power supply voltage, the output current is different, can not be used in the same books. The basic principle is that the large nominal current supply can replace the small nominal current supply. It is estimated that some people would like to think that a large nominal current power will burn books, because the current big thing. Actually how much the current in the case of the same voltage depends on the load, Oh, think of junior high school physics to know.
When the books of high-load operation, the current larger, the books into the standby time, the current is smaller, the nominal current power supply has enough current margin. On the contrary, some people use 56w power supply instead of 72w with no problem, because the power adapter is usually designed to leave a certain margin, the load power should be less than the power supply, so this replacement is generally feasible in the general use, But the remaining power supply power margin is very small, once your books received a lot of peripherals, such as two usb hard drive, and then cpu full speed operation, and then a base, the above to drive a full speed to read the disk, plus at the same time To charge the battery, it is estimated that the danger, and at any time to touch your power is not already boiled eggs. So it is best not to use a small current instead of high current power supply.
Output voltage uniform The socket size and polarity can be the same.
To ibm the book, for example, t60, 61 with the 90w power supply, and x61 with 65w power supply in the output voltage, plug polarity is exactly the same, the difference is the output current is the power size. With 90w alternative 65w completely no problem. If the emergency, can also be used to replace the 90w 90w, but the first to turn off the battery is full, and then boot, so not the same time the battery and load the machine will not exceed 65w power load capacity.
The internal power supply, the adapter for the power supply after the conversion and then supply cpu and other equipment, so the adapter to meet the power in the case of a slight deviation from the voltage are generally able to work, but in order to be stable and reliable, it is recommended to use the original adapter.
